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FILE - This combination image of Associated Press file photos shows possible successors to FBI Director Robert Mueller, whose 10-year nonrenewable term expires Sept. 4, 2011. They are James Comey and Kenneth Wainstein, both former Bush administration law enforcement officers who served in sensitive national security-related posts; Jamie Gorelick, former Clinton administration deputy attorney general; John Pistole, TSA administrator and former deputy FBI director; Michael Garcia, a former U.S. Attorney for the Southern District of New York; Michael Mason, former head of the FBI’s Washington field office and executive assistant director for the bureau's criminal investigative division; Ray Kelly, New York Police Department Commissioner. (AP Photo/Files)
/ AP